EP1295651A3 - Method of producing steel pipes, and welded pipes - Google Patents

Method of producing steel pipes, and welded pipes Download PDF

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Publication number
EP1295651A3
EP1295651A3 EP02292316A EP02292316A EP1295651A3 EP 1295651 A3 EP1295651 A3 EP 1295651A3 EP 02292316 A EP02292316 A EP 02292316A EP 02292316 A EP02292316 A EP 02292316A EP 1295651 A3 EP1295651 A3 EP 1295651A3
Authority
EP
European Patent Office
Prior art keywords
pipes
pipe
steel
producing steel
welded
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP02292316A
Other languages
German (de)
French (fr)
Other versions
EP1295651A2 (en
EP1295651B1 (en
Inventor
Nobuaki c/o Sumitomo Metal Ind. Ltd. Takahashi
Akio c/o Sumitomo Metal Ind. Ltd. Yamamoto
Tomoaki c/o Sumitomo Metal Ind. Ltd. Ikeda
Tetsuya c/o Sumitomo Metal Ind. Ltd. Fukuba
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Steel Corp
Original Assignee
Sumitomo Metal Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=19112205&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1295651(A3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Publication of EP1295651A2 publication Critical patent/EP1295651A2/en
Publication of EP1295651A3 publication Critical patent/EP1295651A3/en
Application granted granted Critical
Publication of EP1295651B1 publication Critical patent/EP1295651B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D7/00—Modifying the physical properties of iron or steel by deformation
    • C21D7/02—Modifying the physical properties of iron or steel by deformation by cold working
    • C21D7/10—Modifying the physical properties of iron or steel by deformation by cold working of the whole cross-section, e.g. of concrete reinforcing bars
    • C21D7/12—Modifying the physical properties of iron or steel by deformation by cold working of the whole cross-section, e.g. of concrete reinforcing bars by expanding tubular bodies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/08—Making tubes with welded or soldered seams
    • B21C37/0807—Tube treating or manipulating combined with, or specially adapted for use in connection with tube making machines, e.g. drawing-off devices, cutting-off
    • B21C37/0811—Tube treating or manipulating combined with, or specially adapted for use in connection with tube making machines, e.g. drawing-off devices, cutting-off removing or treating the weld bead
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/30—Finishing tubes, e.g. sizing, burnishing
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/002—Bainite
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/008—Martensite

Abstract

The high yield ratio problem intrinsic in high-strength steel pipes is solved and a method of producing a steel pipe, while securing the pipe roundness is provided. A steel pipe produced from a steel plate by forming and welding is subjected to 0.3 to 1.2% of expansion and then to 0.1 to 1.0% of reduction. The steel pipe produced by this method has a structure in which martensite and/or bainite accounts for more than 80% as expressed in terms of area percentage, and has a yield strength of not lower than 551 MPa and a yield ratio of not higher than 93%. The pipe reduction is desirably carried out at a lower work ratio as compared with the pipe expansion.
EP02292316A 2001-09-21 2002-09-20 Method of producing steel pipes Expired - Fee Related EP1295651B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2001289758A JP3846246B2 (en) 2001-09-21 2001-09-21 Steel pipe manufacturing method
JP2001289758 2001-09-21

Publications (3)

Publication Number Publication Date
EP1295651A2 EP1295651A2 (en) 2003-03-26
EP1295651A3 true EP1295651A3 (en) 2003-05-07
EP1295651B1 EP1295651B1 (en) 2004-11-24

Family

ID=19112205

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02292316A Expired - Fee Related EP1295651B1 (en) 2001-09-21 2002-09-20 Method of producing steel pipes

Country Status (6)

Country Link
US (1) US6948649B2 (en)
EP (1) EP1295651B1 (en)
JP (1) JP3846246B2 (en)
CA (1) CA2403302C (en)
DE (1) DE60202034T2 (en)
ES (1) ES2227408T3 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100509253C (en) * 2003-04-01 2009-07-08 纳米钢公司 Controlled thermal expansion of welds to enhance toughness
CA2527117A1 (en) * 2003-05-28 2004-12-09 Sumitomo Metal Industries, Ltd. A use of a steel pipe for embedding-expanding as an oil well and a method of embedding-expanding of oil well pipes
CA2576985A1 (en) * 2004-08-11 2006-02-23 Enventure Global Technology, L.L.C. Hydroforming method and apparatus
JP4969915B2 (en) * 2006-05-24 2012-07-04 新日本製鐵株式会社 Steel tube for high-strength line pipe excellent in strain aging resistance, steel plate for high-strength line pipe, and production method thereof
WO2008105990A1 (en) * 2007-02-27 2008-09-04 Exxonmobil Upstream Research Company Corrosion resistant alloy weldments in carbon steel structures and pipelines to accommodate high axial plastic strains
JP5088631B2 (en) * 2008-09-17 2012-12-05 新日本製鐵株式会社 Machine-structured steel pipe with excellent fatigue characteristics and bending formability and its manufacturing method
EP2612946B1 (en) * 2010-09-03 2015-04-08 Nippon Steel & Sumitomo Metal Corporation High-strength steel sheet having excellent fracture resistance performance and hic resistance performance
JP5966441B2 (en) * 2012-03-01 2016-08-10 Ｊｆｅスチール株式会社 Welded steel pipe excellent in pressure crushing performance and internal pressure fracture resistance and manufacturing method thereof
JP2014145532A (en) 2013-01-29 2014-08-14 Mitsubishi Electric Corp Heat medium use device
CA2967906C (en) * 2014-12-25 2020-12-29 Jfe Steel Corporation High-strength thick-walled electric-resistance-welded steel pipe for deep-well conductor casing, method for manufacturing the same, and high-strength thick-walled conductor casing for deep wells

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5794840A (en) * 1995-06-14 1998-08-18 Mannesmann Aktiengesellschaft Process for the production of pipes by the UOE process
EP0867520A2 (en) * 1997-03-26 1998-09-30 Sumitomo Metal Industries, Ltd. Welded high-strength steel structures and methods of manufacturing the same
US5900075A (en) * 1994-12-06 1999-05-04 Exxon Research And Engineering Co. Ultra high strength, secondary hardening steels with superior toughness and weldability

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5411257B1 (en) * 1970-03-27 1979-05-14
JPS58151425A (en) * 1982-02-27 1983-09-08 Nippon Kokan Kk <Nkk> Manufacture of high corrosion-resistant clad steel pipe superior in low-temperature toughness
US4533405A (en) * 1982-10-07 1985-08-06 Amax Inc. Tubular high strength low alloy steel for oil and gas wells
US5545269A (en) 1994-12-06 1996-08-13 Exxon Research And Engineering Company Method for producing ultra high strength, secondary hardening steels with superior toughness and weldability
CA2230396C (en) * 1997-02-25 2001-11-20 Sumitomo Metal Industries, Ltd. High-toughness, high-tensile-strength steel and method of manufacturing the same
JPH10324950A (en) 1997-03-26 1998-12-08 Sumitomo Metal Ind Ltd High-strength welded steel structure, and its manufacture
WO2001010591A1 (en) * 1999-08-06 2001-02-15 Sumitomo Metal Industries, Ltd. Martensite stainless steel welded steel pipe
KR100515399B1 (en) * 2000-06-07 2005-09-16 신닛뽄세이테쯔 카부시키카이샤 Steel pipe having high formability and method for producing the same

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5900075A (en) * 1994-12-06 1999-05-04 Exxon Research And Engineering Co. Ultra high strength, secondary hardening steels with superior toughness and weldability
US5794840A (en) * 1995-06-14 1998-08-18 Mannesmann Aktiengesellschaft Process for the production of pipes by the UOE process
EP0867520A2 (en) * 1997-03-26 1998-09-30 Sumitomo Metal Industries, Ltd. Welded high-strength steel structures and methods of manufacturing the same

Also Published As

Publication number Publication date
CA2403302A1 (en) 2003-03-21
US6948649B2 (en) 2005-09-27
JP2003094113A (en) 2003-04-02
JP3846246B2 (en) 2006-11-15
DE60202034D1 (en) 2004-12-30
US20030062402A1 (en) 2003-04-03
DE60202034T2 (en) 2006-03-02
EP1295651A2 (en) 2003-03-26
CA2403302C (en) 2006-07-04
EP1295651B1 (en) 2004-11-24
ES2227408T3 (en) 2005-04-01

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